APA
Stephen Northcutt, Lenny Zeltser, Scott Winters, Karen Kent & Ronald W Ritchey. (2005). Inside Network Perimeter Security. New Delhi: Pearson Education.
Chicago
Stephen Northcutt, Lenny Zeltser, Scott Winters, Karen Kent and Ronald W Ritchey. 2005. Inside Network Perimeter Security. New Delhi: Pearson Education.
Harvard
Stephen Northcutt, Lenny Zeltser, Scott Winters, Karen Kent and Ronald W Ritchey. (2005). Inside Network Perimeter Security. New Delhi: Pearson Education.
MLA
Stephen Northcutt, Lenny Zeltser, Scott Winters, Karen Kent and Ronald W Ritchey. Inside Network Perimeter Security. New Delhi: Pearson Education. 2005.